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Chapter 1
An Introduction to Machining
Technology ................................................1
1.1 The Evolution of Machine Tools.................. 2
1.2 Basic Machine Tool Operation .................... 5
1.3 Nontraditional Machining Processes ......... 8
1.4 Automating the Machining Process ........... 9
1.5 The Evolving Role of the Machinist ......... 10
1.6 Acquiring Machining Skills and
Knowledge ................................................... 11
Chapter 2
Careers in Machining Technology ......13
2.1 Machining Job Categories .......................... 14
2.2 Preparing to Find a Job in Machining
Technology ................................................... 20
2.3 How to Get a Job ......................................... 21
2.4 Keeping Your Skills Current ..................... 23
Chapter 3
Shop Safety .............................................25
3.1 Safety in the Shop ....................................... 26
3.2 General Machine Safety ............................. 29
3.3 General Tool Safety ..................................... 30
3.4 Fire Safety .................................................... 30
Chapter 4
Understanding Drawings .....................33
4.1 Dimensions .................................................. 36
4.2 Information Included on Drawings ......... 37
4.3 Prints ............................................................. 40
4.4 Types of Drawings Used in the Shop ....... 41
4.5 Parts List ....................................................... 44
4.6 Drawing Sizes .............................................. 44
4.7 Geometric Dimensioning and
Tolerancing ................................................... 45
Chapter 5
Measurement ..........................................57
5.1 The Rule ....................................................... 58
5.2 The Micrometer Caliper ............................. 60
5.3 Vernier Measuring Tools ............................ 65
5.4 Gages............................................................. 70
5.5 Dial Indicators ............................................. 72
5.6 Other Gaging Tools ......................................74
5.7 Helper Measuring Tools ............................. 78
Chapter 6
Layout Work ............................................85
6.1 Making Lines on Metal .............................. 86
6.2 Squares ......................................................... 90
6.3 Measuring Angles ....................................... 91
6.4 Simple Layout Steps .................................... 92
Chapter 7
Hand Tools ...............................................95
7.1 Clamping Devices ....................................... 96
7.2 Pliers ............................................................. 97
7.3 Wrenches ...................................................... 99
7.4 Screwdrivers .............................................. 104
7.5 Striking Tools ............................................. 105
Contents